diff --git a/azure-mgmt-monitor/azure/mgmt/monitor/models/metric_trigger.py b/azure-mgmt-monitor/azure/mgmt/monitor/models/metric_trigger.py
index 0bc042577bb6..8163abe26bac 100644
--- a/azure-mgmt-monitor/azure/mgmt/monitor/models/metric_trigger.py
+++ b/azure-mgmt-monitor/azure/mgmt/monitor/models/metric_trigger.py
@@ -39,7 +39,7 @@ class MetricTrigger(Model):
     :param time_aggregation: Required. time aggregation type. How the data
      that is collected should be combined over time. The default value is
      Average. Possible values include: 'Average', 'Minimum', 'Maximum',
-     'Total', 'Count'
+     'Total', 'Count', 'Last'
     :type time_aggregation: str or
      ~azure.mgmt.monitor.models.TimeAggregationType
     :param operator: Required. the operator that is used to compare the metric
diff --git a/azure-mgmt-monitor/azure/mgmt/monitor/models/metric_trigger_py3.py b/azure-mgmt-monitor/azure/mgmt/monitor/models/metric_trigger_py3.py
index 991b29d2707c..f4fe3daf85d7 100644
--- a/azure-mgmt-monitor/azure/mgmt/monitor/models/metric_trigger_py3.py
+++ b/azure-mgmt-monitor/azure/mgmt/monitor/models/metric_trigger_py3.py
@@ -39,7 +39,7 @@ class MetricTrigger(Model):
     :param time_aggregation: Required. time aggregation type. How the data
      that is collected should be combined over time. The default value is
      Average. Possible values include: 'Average', 'Minimum', 'Maximum',
-     'Total', 'Count'
+     'Total', 'Count', 'Last'
     :type time_aggregation: str or
      ~azure.mgmt.monitor.models.TimeAggregationType
     :param operator: Required. the operator that is used to compare the metric
diff --git a/azure-mgmt-monitor/azure/mgmt/monitor/models/monitor_management_client_enums.py b/azure-mgmt-monitor/azure/mgmt/monitor/models/monitor_management_client_enums.py
index d2bda057fbd3..20e7684fe31a 100644
--- a/azure-mgmt-monitor/azure/mgmt/monitor/models/monitor_management_client_enums.py
+++ b/azure-mgmt-monitor/azure/mgmt/monitor/models/monitor_management_client_enums.py
@@ -27,6 +27,7 @@ class TimeAggregationType(str, Enum):
     maximum = "Maximum"
     total = "Total"
     count = "Count"
+    last = "Last"
 
 
 class ComparisonOperationType(str, Enum):